Billionaire real estate mogul Donald Trump, pondering a run for president, dropped f-bombs in a profanity-laced Las Vegas speech. Sample: "Taxing China: Listen, you m***********s, we are going to tax you 25 ... more

President Jimmy Carter was usually a paragon of public piety. When Sen. Ted Kennedy started mounting a challenge, however, Carter declared: "I'll whip his ass." (KARL SCHUMACHER / AFP/Getty Images)

President Jimmy Carter was usually a paragon of public piety. When Sen. Ted Kennedy started mounting a challenge, however, Carter declared: "I'll whip his ass." (KARL SCHUMACHER / AFP/Getty Images)

President Jimmy Carter was usually a paragon of public piety. When... Photo-3240776.46552 - San Antonio Express-News

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New York Mayor Michael Bloomberg was at the Nathan's Famous Fourth of July International Hot Dog Eating Contest at Coney Island. Starting in on his prepared remarks, Bloomberg looked up and asked: "Who wrote this s***?" (Mario Tama / Getty Images) less

New York Mayor Michael Bloomberg was at the Nathan's Famous Fourth of July International Hot Dog Eating Contest at Coney Island. Starting in on his prepared remarks, Bloomberg looked up and asked: "Who wrote ... more

New York Mayor Michael Bloomberg was at the Nathan's Famous... Photo-3240777.46552 - San Antonio Express-News

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A White House tape recorded President Nixon calling Canada's Prime Minster Pierre Trudeau "an a*****e." Informed of this, Trudeau said: "I've been called worse things by better men." Trudeau once mouthed the f-word across the floor in Parliament, claimed he was saying "fuddy-duddy." (Getty Images) less

A White House tape recorded President Nixon calling Canada's Prime Minster Pierre Trudeau "an a*****e." Informed of this, Trudeau said: "I've been called worse things by better men." Trudeau once mouthed the ... more

A White House tape recorded President Nixon calling Canada's... Photo-3240778.46552 - San Antonio Express-News

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The high point of Richard Nixon's presidency was 1972 meeting with China's Chairman Mao Zedong. Before and after the China visit, White House tapes were picking up Nixon's petty, obscenity-laced tirades and use of phrases like "wop" and "Jew boy." (AFP/Getty Images) less

The high point of Richard Nixon's presidency was 1972 meeting with China's Chairman Mao Zedong. Before and after the China visit, White House tapes were picking up Nixon's petty, obscenity-laced tirades and use ... more

The high point of Richard Nixon's presidency was 1972 meeting... Photo-3240779.46552 - San Antonio Express-News

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President Lyndon Johnson, so ponderous in public, was profane and colorful in private. He erred, however, in saying U.S. would never be beaten in Vietnam by "a raggedly ass little fourth-rate country." (AFP/Getty Images) less

President Lyndon Johnson, so ponderous in public, was profane and colorful in private. He erred, however, in saying U.S. would never be beaten in Vietnam by "a raggedly ass little fourth-rate country." ... more

President Lyndon Johnson, so ponderous in public, was profane and... Photo-3240780.46552 - San Antonio Express-News

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Republican running mates George W. Bush and Dick Cheney, at a 2000 rally where an open mike caught Bush whispering to Cheney: "There's Adam Clymer, major league a*****e from The New York Times." (AFP/Getty Images) less

Republican running mates George W. Bush and Dick Cheney, at a 2000 rally where an open mike caught Bush whispering to Cheney: "There's Adam Clymer, major league a*****e from The New York Times." (AFP/Getty ... more

Republican 2008 presidential nominee Sen. John McCain was -- is -- famously profane in private. Greeted by 60 staffers at his Virginia HQ, McCain blew up at an aide and demanded: "What the f*** are all these people doing here?" (Bill Pugliano / Getty Images) less

Republican 2008 presidential nominee Sen. John McCain was -- is -- famously profane in private. Greeted by 60 staffers at his Virginia HQ, McCain blew up at an aide and demanded: "What the f*** are all these ... more

Bill and Hillary Clinton, blunt talkers in private. "I get really tough when people f*** with me," Hillary told an aide on the night of the New Hampshire primary. Bill claimed the press was so in love with Obama that they would "cream in their jeans for this guy." (ROBYN BECK / AFP/Getty Images) less

Bill and Hillary Clinton, blunt talkers in private. "I get really tough when people f*** with me," Hillary told an aide on the night of the New Hampshire primary. Bill claimed the press was so in love with ... more

President Obama is embraced by Vice President Joe Biden before signing the Affordable Health Care Act, a moment before the mike caught Biden telling his boss: "Mr. President, this is a big f****** deal." (Chip Somodevilla / Getty Images) less

President Obama is embraced by Vice President Joe Biden before signing the Affordable Health Care Act, a moment before the mike caught Biden telling his boss: "Mr. President, this is a big f****** deal." (Chip ... more

President Obama is embraced by Vice President Joe Biden before... Photo-3240784.46552 - San Antonio Express-News